Arrow. 8pm on The CW. The 50th episode is called “The Magician,” and it’s going to be quite the milestone! In it, Oliver and Nyssa join forces, hoping to bring Sara’s killer to justice.

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Photo credit: A

Photo credit: A

Modern Family. 9pm on ABC. The Dunphy household turns into "Awesomeland" for Halloween (yes, all five of them dress in epic costumes), while meanwhile, Jay and Gloria decide to go as Princess Fiona and Shrek.

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Photo credit: B

Photo credit: B

Million Dollar Listing: LA. 9pm on Bravo. Josh Altman puts his relationship with Heather on hold for business again, while Josh Flagg is thinking about anything but business when something major shakes up his personal life.

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Photo credit: F

Photo credit: F

American Horror Story: Freak Show. 10pm on FX. In part 2 of the Halloween episode, Edward Mordrake will kill someone, and fans are speculating that it might be Evan Peters’ character! Nooo! Anyone but him!

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Photo credit: V

Photo credit: V

I Heart Nick Carter. 10pm on VH1. It's the season finale, aka Nick and Lauren's wedding day has finally arrived! Here's Lauren's reaction when Nick's manager asks her to sign a last-minute prenup. Awkward.

Arrow. 8pm on The CW. The 50th episode is called “The Magician,” and it’s going to be quite the milestone! In it, Oliver and Nyssa join forces, hoping to bring Sara’s killer to justice.

Modern Family. 9pm on ABC. The Dunphy household turns into "Awesomeland" for Halloween (yes, all five of them dress in epic costumes), while meanwhile, Jay and Gloria decide to go as Princess Fiona and Shrek.

Million Dollar Listing: LA. 9pm on Bravo. Josh Altman puts his relationship with Heather on hold for business again, while Josh Flagg is thinking about anything but business when something major shakes up his personal life.

American Horror Story: Freak Show. 10pm on FX. In part 2 of the Halloween episode, Edward Mordrake will kill someone, and fans are speculating that it might be Evan Peters’ character! Nooo! Anyone but him!

I Heart Nick Carter. 10pm on VH1. It's the season finale, aka Nick and Lauren's wedding day has finally arrived! Here's Lauren's reaction when Nick's manager asks her to sign a last-minute prenup. Awkward.